How to deposit BTC using the Lightning Network

You can deposit Bitcoin (BTC) to Ndax over the Lightning Network, which usually takes seconds and is free from Ndax. Instead of a wallet address, you create a Lightning invoice for the exact amount, then pay it from a wallet that supports Lightning. Invoices are valid for 1 hour and can be from 0.000001 to 0.1 BTC. 

Warning: Only use the Lightning Network if your sending wallet supports Lightning payments. Send the exact invoice amount. If you send more or less, the payment will fail. 

When you deposit BTC, you can choose the Bitcoin (on-chain), Binance Smart Chain (BEP20), or Lightning Network. 

• Your sending wallet must support Lightning.
• Limits: each invoice can be from 0.000001 BTC to 0.1 BTC (10 million sats). Amounts outside this range can't be invoiced.
• Exact amount: you must send the exact invoice amount.
• Invoices expire after 1 hour. Create a new one if yours expires.
• Fees: Ndax charges a 0.2% fee for BTC deposits made through the Lightning Network. Your sending wallet may also charge a network fee. 
• More than one invoice: you can create several, but limits on how often may apply. If you see a limit message, wait before creating another. 

On the Ndax website

1. Log in at ndax.io.
2. In the left-hand menu, select Wallet.
3. Select BTC.
4. Select Receive at the bottom of the screen.
5. Select Lightning Network.
6. Enter the amount of BTC you want to deposit.
7. Select Create Invoice.
8. Copy the invoice, or scan it with your sending wallet.
9. In your Lightning wallet, pay the invoice within 1 hour.

On a mobile browser: follow the website steps. To open the menu, tap the Ndax logo at the top left. 

On the Ndax app

1. Log in to the Ndax app.
2. Tap Wallet in the bottom navigation bar.
3. Select BTC.
4. Tap the down-arrow (Receive) at the bottom of the screen.
5. Select Lightning Network.
6. Enter the amount of BTC you want to deposit.
7. Tap Create Invoice.
8. Copy the invoice, or scan it with your sending wallet.
9. In your Lightning wallet, pay the invoice within 1 hour. 

Lightning deposits usually arrive in your Ndax BTC wallet within seconds. 

I can't create an invoice. Check that your amount is between 0.000001 and 0.1 BTC. If you've created several invoices, you may need to wait before creating another.

My payment failed. Make sure you sent the exact invoice amount, and that the invoice hadn't expired. Create a new invoice and try again. 

• How to deposit crypto into your Ndax account
• What happens if I send unsupported crypto or use the wrong network?
• How to deposit funds into your Ndax account

Last updated: October 10, 2026. Reviewed by Ndax Customer Support

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